Rockwell Automation 1756-Lx_Mx ControlLogix Controller and Memory Board Installation Instructions - Manuel (Page 4)

4 ControlLogix® Controller and Memory Board
Publication 1756-IN101J-EN-P - November 2004
Replace a Suspected Failed Controller
RS232
BATTERY
PORT
1-DCD
2-RXD
4-DTR
3-TXD
5-GND
DSR-6
CTS-8
RTS-7
N/C-9
1
2
BATTERY DATE
UP
COMPACT
FLASH
2
To
Insert 1
To Eject
1 + 2 2
1
1
Catalog number of the memory board,
if one is installed
Catalog number of the controller
ControlLogix
1756-M…
CAT. NO./SERIES
ControlLogix
1756-L…
CAT. NO./SERIES
3. Match the catalog numbers of the
controllers and memory boards.
1. Cycle the power to the
chassis.
2. Make sure the OK LED is solid red.
If the OK LED is not solid red, the
controller does not require
replacement.
42523
4. Install the battery.
series A series B